Here's what rhymes with unclassify.
high thy vi hi shy sigh fi hy thigh vie psi hai cy fy sy thei phi by my why die lie y buy fly sky guy tie bi bye chi classify defy dye nigh pi pie spy thai dei fry ly quae rye sly ty wir awry lye mai muy nai wry kai lai luy mei tai wai sty ossify stye slier yuppify dry try cry deny rely hereby gratify ply pacify pry ratify tri trie belie pri crucify ramify vilify spry vivify reclassify turfy scurfy shanghai apply supply reply thereby imply justify nearby whereby clarify modify qualify signify verify certify glorify quantify alibi fortify nullify unify beautify decry lullaby termini typify untie descry edify mollify mortify overlie acidify aquae bonsai deify firefly amebae calcify horrify revivify stupefy lanai overfly versify declassify mummify vitrify refortify ripply banzais overbuy occupy satisfy specify alkali simplify testify butterfly goodbye notify purify underlie alveoli amplify diversify magnify rectify samurai falsify pupae solidify terrify amoebae codify dignify liquefy resupply mystify retry stratify triply ultrahigh blowfly emulsify misapply reunify liquify scarify barfly prettify beatify drachmai speechify syllabify dandify stimuli comply multiply nuclei intensify standby oversupply personify detoxify dragonfly stultify petrify cumuli gentrify identify disqualify indemnify objectify demystify electrify preoccupy dissatisfy hyperbolae solemnify exemplify oversimplify transmogrify misidentify